I believe this would be a bit of a double edged sword...Due to the plane I fly most often and the time I fly I may as well have the icon stating who I am...This has both positive and negative consequences...one is that yes I will get jumped on by many (all in fun though...well....that's what I tell myself) but I will also get some great 1,2 v 1's....also the full on headons are less as most know who I am and how I fight...trigger fingers do get
twitchy 
during a good hard turn fight but this isn't what I consider head on so much......So in essence when you know who you are fighting I believe the style of players adjusts accordingly (in most cases)...this would/could also stop much of the ganging as the names will be blazoned for all to see and if you see a known picker or should I say hi cover extraordinaire it will make you adjust accordingly..This however is something that you as a virtual fighter should know ...
SA... icons or no....
As for the newer player...well they will do as others around them do and if they are not offered any help/guidance they will roll with what they know.
on the other side of it yes you will have people avoiding fights due to knowing .......picking on particular people ...but by in large it would be much like anything in these days of the gamers, exploit it if you can....the people who do it will...people who don't won't ..... honesty is lost within the sinternet by many a sad but true fact....
so although I personally don't want this idea I see +'s and -'s with it.